package com.huotu.fanmore.pinkcatraiders.adapter;

import android.os.Parcelable;
import android.support.v4.view.PagerAdapter;
import android.support.v4.view.ViewPager;
import android.view.View;

import java.util.List;

/**
 * 欢迎界面页面切换
 */
public
class ViewPagerAdapter extends PagerAdapter {

    //界面列表
    private List< View > views;

    public
    ViewPagerAdapter ( List< View > views ) {
        this.views = views;
    }

    //销毁arg1位置的界面
    @Override
    public
    void destroyItem ( View arg0, int arg1, Object arg2 ) {
        ( ( ViewPager ) arg0 ).removeView ( views.get ( arg1 ) );
    }

    @Override
    public
    void finishUpdate ( View arg0 ) {
        arg0.postInvalidate ( );
    }

    //获得当前界面数
    @Override
    public
    int getCount ( ) {
        if (views != null)
        {
            return views.size();
        }

        return 0;
    }


    //初始化arg1位置的界面
    @Override
    public Object instantiateItem(View arg0, int arg1) {

        ((ViewPager) arg0).addView(views.get(arg1), 0);

        return views.get(arg1);
    }

    //判断是否由对象生成界面
    @Override
    public boolean isViewFromObject(View arg0, Object arg1) {
        return (arg0 == arg1);
    }

    @Override
    public void restoreState(Parcelable arg0, ClassLoader arg1) {
        // TODO Auto-generated method stub

    }

    @Override
    public Parcelable saveState() {
        // TODO Auto-generated method stub
        return null;
    }

    @Override
    public void startUpdate(View arg0) {
        // TODO Auto-generated method stub

    }
}
